The Allen-Bradley 1785-KA5 B is a communication interface module designed to function as a gateway between DH+ (Data Highway Plus) and DH485 networks. It enables seamless data exchange between PLC-5 controllers and SLC 500 controllers, making it a critical component in distributed control systems. The 1785-KA5 B is commonly used for remote I/O, supervisory control, and real-time monitoring, providing efficient data transfer across multiple industrial networks.
In Stock
Technical Specifications
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Model: 1785-KA5 B
- Module Type: DH+/DH485 Gateway Communication Adapter
- Supported Networks:
- DH+ (Data Highway Plus)
- DH485 (Data Highway 485)
- Backplane Current Requirement: 2.0 Amps at 5V DC
- Communication Speed: Supports 57.6 kbps and 115.2 kbps on DH+ and DH485
- Max DH+ Nodes Supported: 64 nodes
- Max DH485 Nodes Supported: 32 nodes
- Mounting Type: Rack-mounted in a PLC-5 chassis
- Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
- Certifications: UL, CE, CSA
Key Features
- Acts as a bridge between DH+ and DH485 networks
- Allows PLC-5 and SLC 500 controllers to communicate efficiently
- Supports up to 64 nodes on DH+ and 32 nodes on DH485
- Rack-mounted design for seamless integration with PLC-5 systems
- LED indicators for communication status and diagnostics
- Reduces the need for additional cabling and simplifies system architecture
Compatible Allen-Bradley Components
- Allen-Bradley PLC-5 Controllers (e.g., 1785-L40B, 1785-L60B)
- Allen-Bradley SLC 500 Controllers with DH485 interface
- Allen-Bradley 1771 I/O modules and chassis
- Allen-Bradley PanelView HMI terminals with DH+ or DH485 connectivity
Industry Applications
- Manufacturing automation and process control
- Supervisory control and data acquisition (SCADA) systems
- Material handling and conveyor automation
- Oil and gas pipeline monitoring and control
- Utility and water treatment plant automation
Installation & Operational Notes
- Ensure correct slot placement in the PLC-5 chassis for proper operation
- Verify proper DH+ and DH485 wiring connections to avoid communication faults
- Use LED indicators to monitor network activity and troubleshoot issues
- Regularly update firmware and maintain the module for optimal performance
- Follow Allen-Bradley’s installation and configuration guidelines for seamless integration
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